TPS1285A TPS51285ARUKR 1285A Texas Instruments Dual Synchronous Step-Down Controller WQFN-20 

Product Code: TPS51285ARUKR 

Part Marking: 1285A 

Brand: Texas Instruments 

Package Type: WQFN-20 (RUK, 3x3 mm) 

Datasheet: TPS51285A-B 

Product Features 

The TPS51285ARUKR - TPS51285ARUKT is a cost-effective, dual synchronous buck controller with 5-V and 3.3-V LDOs, designed by Texas Instruments for notebook and tablet computers. It achieves low power consumption by using auto-skip and ULQ (Ultra-Low Quiescent) modes, which is highly beneficial for long battery life during system stand-by mode. The device employs an adaptive on-time D-CAP mode control that enables fast load transient response without the need for an external compensation network. Additionally, it provides a 256-kHz VCLK output to drive an external charge pump with minimum power consumption. 

• Type: Dual Synchronous Step-Down Controller 
• Input Voltage Range: 5 V to 24 V 
• LDO Outputs: 5 V and 3.3 V (100 mA built-in LDO) 
• Operating Frequency: 400 kHz (CH1) and 475 kHz (CH2) 
• Control Architecture: Adaptive on-time D-CAP mode and ULQ stand-by mode 
• Protections: OVP (Over Voltage), UVP (Under Voltage), OCP (Over Current), UVLO, and OTP (Thermal Shutdown) 
• Package Type: WQFN-20 (RUK, 3x3 mm) 
• Applications: Notebook and tablet computers 

Sales Information 

Condition: BRAND NEW. Original. 

Warranty: No warranty is provided for semiconductor products. 

Shipping (Turkey): All orders placed before 16:30 on weekdays and 14:30 on Saturdays are shipped the same day via our contracted courier. (Excluding peak shipping periods, public holidays, and conditions that may prevent the courier company from operating) 

International Shipping: Orders placed before 16:30 on weekdays are shipped via Air Parcel on the same business day. Orders placed on weekends and outside working hours are shipped on the next business day. (Excluding peak periods) Country of origin: Turkey.